2.1 Contrasting the Document-Based and Model-Based Approach
The following sections contrast the document-based approach and the model-based approach to systems engineering.
2.1.1 Document-Based Systems Engineering Approach
Traditionally, large projects have employed a document-based systems engineering approach to perform the systems engineering activities referred to in Chapter 1, Section 1.2. This approach is characterized by the generation of textual specifications and design documents, in hard-copy or electronic file format, that are then exchanged between customers, users, developers, and testers. System requirements and design information are expressed in these documents and drawings. The systems engineering emphasis is placed on controlling ...